EP0164486A1 - Kupplung für ein rotierendes Organ - Google Patents

Kupplung für ein rotierendes Organ Download PDF

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Publication number
EP0164486A1
EP0164486A1 EP84870079A EP84870079A EP0164486A1 EP 0164486 A1 EP0164486 A1 EP 0164486A1 EP 84870079 A EP84870079 A EP 84870079A EP 84870079 A EP84870079 A EP 84870079A EP 0164486 A1 EP0164486 A1 EP 0164486A1
Authority
EP
European Patent Office
Prior art keywords
coupling flange
thread
flange according
male member
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84870079A
Other languages
English (en)
French (fr)
Other versions
EP0164486B1 (de
Inventor
Serge Hauregard
Raoul Rutten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robbins and Myers Canada Ltd
Original Assignee
Robbins and Myers Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robbins and Myers Canada Ltd filed Critical Robbins and Myers Canada Ltd
Priority to DE8484870079T priority Critical patent/DE3483718D1/de
Priority to AT84870079T priority patent/ATE58954T1/de
Priority to EP84870079A priority patent/EP0164486B1/de
Publication of EP0164486A1 publication Critical patent/EP0164486A1/de
Application granted granted Critical
Publication of EP0164486B1 publication Critical patent/EP0164486B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/101—Moineau-type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members

Definitions

  • the present invention relates to a coupling flange intended to rigidly assemble at the end, by screwing, a rotary member provided at one end, with a central housing and an external thread and a male member engaged in said housing by a head of shape complementary to that of said housing.
  • the shaft in question has, at one end, an external thread, while the rotary member has on the aforementioned thread side, a cylindrical collar comprising a tapping in the same direction as the thread, but of no different.
  • the external and internal threads of the shaft and of the rotary member are engaged, respectively, with the internal and external threads of the internal thread and of a thread of a crown nut.
  • the object of the present invention is to remedy the drawbacks described above. It relates to a coupling flange intended to rigidly assemble at the end, by screwing, a rotary member provided at one end, with a central housing and an external thread and a male member engaged in said housing by a head. shape complementary to that of said housing.
  • Said flange consists of a double-bore sleeve, of different diameters each provided with a thread with helical threads of different pitch, one of the threads corresponding to that of the above-mentioned rotary member and the other of which corresponds to a thread formed on the male member in the vicinity of the above-mentioned head, essentially characterized in that it comprises a bending loop assembled with the male member.
  • the bore having the smallest diameter is provided with a finer thread and the bore having a larger diameter is provided with a wider thread or vice versa.
  • the housing of the rotary member has the shape of a revolution.hyperbololde curve.
  • the coupling flange has an aerodynamic outer shape.
  • the length of the thread having a wide thread is advantageously substantially equivalent to that of the thread having a fine thread.
  • FIG. 1 there is shown a coupling flange designated as a whole by the reference notation 1.
  • This flange consists of a coupling sleeve 2 with double bore 3, 4 and is intended to rigidly join a rotary member 5 and a male member 6 disposed at the end relative to each other.
  • the two organs can possibly be offset.
  • the male member 6 is then advantageously a flexible connecting rod. It can also consist of a rigid shaft which is connected for example to the rotor of a pump by means of a flexion loop 7. ( Figure 2).
  • the coupling flange according to the present invention is provided between the rotary member 5 rotating around a fixed axis L, L 'and the male member 6 disposed outside of alignment with the axis L, L '.
  • the rotary member 5 comprises at its end, an oblong central housing 8, hollowed out along its axis of rotation L, L '.
  • the central housing 8 is provided with a cylindrical collar 9 externally carrying a thread 10.
  • the male member 6 has a head 8 ′ consisting of sections with inclined flanks of complementary shape to the aforementioned frustoconical central housing 8 so as to fit perfectly into the aforementioned housing 8.
  • the aforementioned central housing 8 advantageously has the form of a parabolold or a hyperbolold.
  • the male member has a cylindrical collar 11 provided with a shoulder or leave 12 intended to distribute the stresses.
  • the cylindrical collar 11 is provided with a thread 13 in the same direction as that of the rotary member, but of no different.
  • the coupling flange is a sleeve 2 with double bore 3, 4, the internal walls of which have threads 14, 15, the grooves of which correspond to the pitches of the threads 10, 13 above.
  • the bore having the smallest diameter is provided with a finer thread and the bore having a larger diameter is provided with a wider thread.
  • the reverse is also possible.
  • the coupling flange can be mounted on the male member while engaging said fine thread carried by the male member. ( Figure 1). It can also be mounted on the rotary member while being in engagement with said fine thread carried by the rotary member. ( Figure 3).
  • this coupling flange 1 is preferably given an aerodynamic profile.
  • the aerodynamic profile is then intended to reduce the resistance of the coupling flange to the flow of the fluid in the pump body 17.
  • the coupling flange has at least two flats 2 'allowing it to be gripped using a flat wrench.
  • the gasket 19 seals and prevents the self-dassing of the coupling flange 1 during a clockwise rotation of the assembly.
  • This gasket 19 ensures perfect assembly of the parts regardless of the direction of rotation. However, it allows easy release of the coupling flange when using suitable tools.
  • This blocking lining 19 also reinforces the tightness of the system and prevents any infiltration of fluid between the rotary member and the coupling flange and any intervention of corrosive or abrasive substances.
  • the shape of the lining 19 is naturally adapted to that of the coupling flange.
  • Sealing can also be obtained by inserting a seal 20 into a groove 21 separating the two bores of the sleeve 2 and / or by applying a teflonized paste to the threads 10, 13 of the members. 5 and male 6 coupling.
  • the coupling flange according to the invention is perfectly suited in a positive displacement pump with a helical rotor for coupling between said rotor and a possibly flexible connecting rod.
  • Such a pump comprises a suction or discharge body 1 disposed against an external stator generally made of synthetic rubber, for example made of Hypalon, in which a rotor 16 meshes.
  • the internal surface of the stator not shown, has a thread or tooth more helical than the outer surface of the rotor, as well known per se.
  • the stator is generally made of elastic polymer material, the rotor 16 does not rotate about a fixed axis, but rather eccentrically with respect to the longitudinal axis XX 'of the stator, while remaining parallel to itself.
  • the rotor 16 is connected to the flexible rod 18 optionally by means of flexion loops 7, 22 or 23 which facilitate the transmission of the rotational movement in various directions.
  • the flexible connecting rod 18 comprises at one of its ends, a head 8 ′ of conical or frustoconical shape generally obtained by turning and rectification
  • the head 8 ′ tapers towards the end.
  • the base of the head is provided with an external thread 13 with fine pitch.
  • the flexible connecting rod 18 has a leave intended to avoid stress concentrations in the vicinity of the end of the thread.
  • the rotor has a housing 8 of shape complementary to that of the end of the flexible rod, so as to allow the rod 18 or at one end of the bending loop 7 to fit perfectly into the housing 8 above.
  • This housing 8 is provided with a cylindrical flange 9 externally carrying a thread 10, the pitch of which is substantially greater than the fine pitch of the above-mentioned thread 13 or vice versa.
  • the third coupling element is a connecting part 2 with a double bore, the internal walls of which have grooves 14 and 15 corresponding to the pitches of the above-mentioned threads.
  • the abovementioned connecting piece 2 has grooves of different pitches in each of the bores, it ensures that the cones or truncated cones 8, 8 ′ of the first and second abovementioned elements are tightened together when 'this connection piece 2 is tightened on the aforementioned flange 9.
  • the above coupling is not subject to wear in the medium of the above pumped liquid, which can be abrasive or corrosive.
  • the reduced diametrical size of this type of coupling contributes to improving the efficiency of the pump.
  • the coupling flange can be used to assemble two members arranged in the extension of one another, possibly of the same diameter or of different diameter, provided with threads of different pitches.
  • flexion loop 7 consisting of two elements connected by elastic strips in the form of turns arranged in the same transverse plane
  • flexion loops 22 and / or 23 for example comprising radial arms 24 connected together by their ends 26 or having a helical shape 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rotary Pumps (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP84870079A 1984-06-13 1984-06-13 Kupplung für ein rotierendes Organ Expired - Lifetime EP0164486B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8484870079T DE3483718D1 (de) 1984-06-13 1984-06-13 Kupplung fuer ein rotierendes organ.
AT84870079T ATE58954T1 (de) 1984-06-13 1984-06-13 Kupplung fuer ein rotierendes organ.
EP84870079A EP0164486B1 (de) 1984-06-13 1984-06-13 Kupplung für ein rotierendes Organ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84870079A EP0164486B1 (de) 1984-06-13 1984-06-13 Kupplung für ein rotierendes Organ

Publications (2)

Publication Number Publication Date
EP0164486A1 true EP0164486A1 (de) 1985-12-18
EP0164486B1 EP0164486B1 (de) 1990-12-05

Family

ID=8193141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84870079A Expired - Lifetime EP0164486B1 (de) 1984-06-13 1984-06-13 Kupplung für ein rotierendes Organ

Country Status (3)

Country Link
EP (1) EP0164486B1 (de)
AT (1) ATE58954T1 (de)
DE (1) DE3483718D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209371A1 (de) * 2000-11-24 2002-05-29 Constructions Brevetées d' Alfortville - CBA Gelenk für eine Kugel-Rampen-Betätigungseinrichtung
CN105240416A (zh) * 2015-10-16 2016-01-13 珠海格力电器股份有限公司 一种联轴器及空调内机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23527C (de) * ERNST in Oelheim bei Peine Gestängekuppelung mit zwei Schraubengewinden
AT22545B (de) * 1904-03-14 1905-12-27 George Theodore Temple Rohrverschraubung.
AT120284B (de) * 1929-11-27 1930-12-10 Us Union Corp Rohrverbindung.
FR2029116A5 (de) * 1969-01-10 1970-10-16 Bourcier M At Const Meca
US3988906A (en) * 1975-08-01 1976-11-02 Smith Thomas R Flexible coupling

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR364769A (fr) * 1906-03-30 1906-08-28 Daimler Motoren Accouplement articulé pour arbres
FR776041A (fr) * 1934-07-16 1935-01-15 Transmission mécanique
BE777174A (fr) * 1971-12-22 1972-04-17 Gardier S A Atel Accouplement elastique,
BE793304A (fr) * 1972-12-22 1973-04-16 Gardier S A Atel Dispositif d'etancheite monte sur une bielle de transmission.
US4203305A (en) * 1974-03-25 1980-05-20 Williams Richard H Flexible coupling
BE892404A (fr) * 1982-03-08 1982-07-01 Gardier S A Atel Accouplement rigide pour pompe volumetrique a rotor helicoidal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23527C (de) * ERNST in Oelheim bei Peine Gestängekuppelung mit zwei Schraubengewinden
AT22545B (de) * 1904-03-14 1905-12-27 George Theodore Temple Rohrverschraubung.
AT120284B (de) * 1929-11-27 1930-12-10 Us Union Corp Rohrverbindung.
FR2029116A5 (de) * 1969-01-10 1970-10-16 Bourcier M At Const Meca
US3988906A (en) * 1975-08-01 1976-11-02 Smith Thomas R Flexible coupling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209371A1 (de) * 2000-11-24 2002-05-29 Constructions Brevetées d' Alfortville - CBA Gelenk für eine Kugel-Rampen-Betätigungseinrichtung
CN105240416A (zh) * 2015-10-16 2016-01-13 珠海格力电器股份有限公司 一种联轴器及空调内机

Also Published As

Publication number Publication date
EP0164486B1 (de) 1990-12-05
ATE58954T1 (de) 1990-12-15
DE3483718D1 (de) 1991-01-17

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